Jordyn's Haptic User Interface (HUI) Phase 2 ECE 480 Team 6 Spring Semester 2013 Home Documents Progress Pictures Team Information Progress  1/11/13 Team met with sponsor, Mr. Blosser of MSU RCPD.  Received materials from Phase I (Fall Semester 2012 team).  Discussed project objectives.   1/18/13 Tested Phase I HUI with Mr. Blosser, Jordyn, and Al (blind RCPD faculty member).  Received feedback and divided project requirements into two stages: primary and secondary.   1/30/13 Prototype I (see pictures) demo.  Works but needs to be improved.   1/31/13 Pre-proposal submitted   2/8/13 Calculating force need to hold pin up.  ECE 305 flashback!   2/11/13 More calculations   2/18/13 Proposal outlined 2/20/13 Prototype II (see pictures) demo.  Works better than Prototype I, but still needs some improvement. Pressure from user’s finger is greater than the force the solenoid exerts on pin.  Therefore pin falls when too much pressure is exerted.   2/22/13 Proposal completed and submitted Proposal presentation to class, check out it out under Documents tab!   2/25/13 Solenoid driver circuit tests   3/13/13 Design changes, new circuit design Prototype III demo, best design yet. Adding a wedge to stabilize pins.  Pins no longer drop no matter how much pressure on them. 3/15/13 – 3/29/13 PCB creation.  With final circuit design, now time to fabricate onto PCB.    3/19/13 – 3/20/13 Software – Arduino coding.  Simple LED driver circuit.  LEDs emulate what pins will do, LED on, pin is up and if LED is off, pin is down.   3/22/13 Technical presentation topic assigned: Design Magnets   4/1/13 Team technical presentation to class; check it out under the Documents tab!   4/1/13 PCBs ordered 4/5/13 Application notes submitted   4/5/13 – 4/17/13 3D modeling for pin tower and wedges 4/9/13 PCBs are in!   4/10/13 Create solenoid core and ends with Mr. Blosser.   4/12/13 Soldering PCBs   4/15/13 Make solenoid spools and wind solenoids   4/17/13 Soldering – PCBs are lookin’ great!   4/18/13 More soldering – solenoids attached and PCBs are done! Arduino code implementation – 24 LEDs = 24 pins Ordered pin tower and wedges for 3D printing   4/19/13 Demo project for Dr. Grotjohn and Dr. Ayres                   3D printing done!  Received pin tower and 24 wedges     4/22/13 Graphical User Interface has been tested and successfully communicates with the Arduino Leonardo and Shift Registers!   4/24/13 Final Report Submitted, casing complete   4/25/13 Assembly and testing wrapping up!